Fair Value Measurements (Details) - USD ($) $ in Millions		3 Months Ended
		Sep. 30, 2019	Sep. 30, 2020	Dec. 31, 2019
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative Asset		$ 74	$ 126	$ 25
Derivative Liability		20	97	43
Technology-Based Intangible Assets
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Finite-Lived Intangible Assets, Gross		0
Other Intangible Assets [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Finite-Lived Intangible Assets, Gross		0
In Process Research and Development [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Asset Impairment Charges		(47)
Indefinite-lived Intangible Assets (Excluding Goodwill)		0
Fair Value, Recurring [Member] | Fair Value, Inputs, Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash, cash equivalents and restricted cash equivalents, fair value disclosure	[1]	1,568	1,986	1,293
Assets at Fair Value		1,759	2,264	1,323
Liabilities at Fair Value		20	97	43
Marketable Securities		117	152	5
Foreign Currency Contract [Member] | Fair Value, Recurring [Member] | Fair Value, Inputs, Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative Asset	[2]	74	125	25
Derivative Liability	[2]	20	96	$ 43
Commodity Contract [Member] | Fair Value, Recurring [Member] | Fair Value, Inputs, Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative Asset			1
Derivative Liability			$ 1
Technology-Based Intangible Assets
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Asset Impairment Charges		(1)
Other Intangible Assets [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Asset Impairment Charges		$ (6)

[1] Time deposits included in cash and cash equivalents and money market funds included in other current assets in the interim Condensed Consolidated Balance Sheets are held at amortized cost, which approximates fair value.

[2] See Note 17 - Financial Instruments for the classification of derivatives in the interim Condensed Consolidated Balance Sheets.